High temperature silicone plugs soft rubber pipe plug

High temperature silicone plugs require a formulation matched to the actual exposure at the opening being closed. Peak temperature, duration and repeated cycling can all matter to the finished part. A general silicone description should not be used to infer an extreme temperature capability for every plug.

Select the insertion profile around the receiving bore and the required seating depth. The plug must maintain its intended position through the process conditions without contacting an internal obstruction or becoming inaccessible for removal. Any pressure or sealing duty needs evaluation separately within the complete joint.

Keep the receiving edge smooth to avoid damage during fitting. Handling and removal should follow the process conditions and the state of the surrounding part. Before reuse, inspect the contact area for cuts and permanent distortion, and check whether the original fit has changed. A plug that has hardened, torn or lost its intended shape should not be treated as equivalent to a new part simply because it can still be pushed into the opening.

Material options

Custom silicone compound; formulation and geometry developed together.

Hardness selection

Silicone options: 20–80 Shore A. Select the insertion profile around the receiving bore and the required seating depth.

Custom geometry

A plug that has hardened, torn or lost its intended shape should not be treated as equivalent to a new part simply because it can still be pushed into the opening.

Fit evaluation

Keep the receiving edge smooth to avoid damage during fitting.

Color & OEM

Custom colors; OEM identification positioned outside closure contact surfaces.

Photos illustrate structure or material appearance only. High temperature silicone plugs require a formulation matched to the actual exposure at the opening being closed. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.